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PREP07 Test 1 PREP2012	Roland: The alarming fact is that 90 percent of the people in this country now report that they know someone who is unemployed. Sharon: But a normal, moderate level of unemployment is 5 percent, with 1 out of 20 workers unemployed. So at any given time if a person knows approximately 50 workers, one or more will very likely be unemployed.Sharon's argument is structured to lead to which of the following as a conclusion?
	In the Mundane Goblet competition, 6 teams compete in a "round robin" format: that is, each team plays every other team exactly once. A team gets 3 points for a win, 1 point for a tie (a draw), and 0 points for a loss. What is the difference between the maximum total points and the minimum total points that can be gained by all teams (added together) in the Mundane Goblet competition?
Ready4	Drivers of automobiles who are over 30 are more likely to purchase music in digital format and are more likely to purchase it in larger amounts than are members of any other demographic group. The popular conception that young people listen to more music in digital format than adults must, therefore, be false. The argument is flawed primarily because the author
Ready4	Toward the end of that year, the food and beverage entrepreneur was looking for a partner - someone not only who could provide expertise in developing talent pipelines, but sharing his passion as well to launch a new product on the market.
Ready4	In a water tank, $\frac{3}{4}$ of the volume is occupied by water and the remainder of the volume is occupied by air. If a contaminant occupies $\frac{1}{3}$ of the water, by volume, and 20 percent of the air, what percent of the volume of the water tank is contaminated?
OG2022	Roland: The alarming fact is that 90 percent of the people in this country now report that they know someone who is unemployed. Sharon: But a normal, moderate level of unemployment is 5 percent, with 1 out of 20 workers unemployed. So at any given time if a person knows approximately 50 workers, one or more will very likely be unemployed. Sharon's argument is structured to lead to which of the following as a conclusion?
PREP07 Test 2	At a certain supplier, a machine of type A costs $20,000 and a machine of type B costs $50,000. Each machine can be purchased by making a 20 percent down payment and repaying the remainder of the cost and the finance charges over a period of time. If the finance charges are equal to 40 percent of the remainder of the cost, how much less would 2 machines of type A cost than 1 machine of type B under this arrangement?
Ready4	The value of $3^{- 2} + 3^{- 4} + 3^{- 6}$ is how many times the value of $3^{- 5}$ ?
Ready4	In traditional Marxism, property can be seen as the means to sustain life and as something to be enjoyed and shared.
Ready4	Ice-cream sodas are much more popular among American children than children of other countries.
	During the Summer Fitness Challenge, 27 individuals entered the contest to lose weight. Each contestant was categorized by weight group into 3 groups. Each fitness trainer, 9 in total, was assigned to one contestant from each weight group. The number of kilograms lost by the end of the 8-week session is recorded in the table below.The final score for the contest was computed as a weighted mean of the kilograms lost for client 1, client 2, and client 3, using the same weights for each fitness trainer.For each of the following statements, select Yes if the statement is true based on the information provided; otherwise select No.
Ready4	The percentage of global tourists who visit Glastock has increased by five percentage points over the past three years. Since tourism contributes an estimated 7% of Glastock's gross domestic product, this increase is likely to have a positive impact on the economy of Glastock. Which of the following, if true, most strengthens the argument given?
	Near Chicago a newly built hydroponic spinach "factuory," a completely controlled environment for growing spinach, produces on 1 acre of floor space what it takes 100 acres of fields to produce. Expenses, especially for electricity, are high ,however, and the spinach produced costs about four times as much as washed California field spinach, the spinach commonly sold throughout the United States.Which of the following, if true, best supports a projection that the spinach-growing facility near Chicago will be profitable?
Ready4	A restaurant owner plans to replace the restaurant's tables and chairs, which are currently of a generic design, with sturdier models from a manufacturer in Maine. The newer tables and chairs are more expensive, but they are extremely durable, so the owner expects to have to replace them far less frequently, saving money in the long term. Which of the following must be studied in order to evaluate the argument presented above?
Ready4	The events of the 2006 movie Driving Lessons focus on the friendship between Ben, a shy teenaged boy, with an aging and eccentric actress, Evie, when she hires the boy as a companion to assist her in the house and drive her to various appointments.
300难题	Rita and Sam play the following game with n sticks on a table. Each must remove 1, 2, 3,4 or 5 sticks at a time on alternate turns, and no stick that is removed is put back on the table. The one who removes the last stick (or sticks) from the table wins. If Rita goes first， which of the following is a value of n such that Sam can always win no matter how Rita plays?
190113 还原机经选题: 文字题&几何	There were 50 students in a school. The school has three courses, A, B, and C. Students can take 0, 1, 2 and 3 courses. The numbers of students that took A, B, and C were 22, 25, and 33, respectively. 11 students took both A and B. 20 students took both B and C, and 19 students took both A and C. 9 students took all three courses. How many students didn't take any course?
	The flowchart represents a mathematical algorithm that takes two positive integers as the input and returns a positive integer as the output. Processes are indicated in the rectangular symbols in the flowchart. Each process is symbolized by an equation, such as T = T + a. In this particular process, the current values of the variables T and a are added together and the sum then becomes the value of T. For example, if the value of T is 3 and the value of a is 7 before the process T = T + a is completed, then the value of T is 10 and the value of a is 7 after the process is completed.Use the drop-down menus to fill in the blanks in the following statements based on the algorithm represented by the flowchart.If 24 and 35 are entered as the values for a and b, respectively, then the first nonzero value of T is .If 35 and 27 are entered as the values for a and b, respectively, then after the process b=b/2 is completed for the second time, the value of b is .
	The graph shows data for 40 children, half of whom were male (M) and half of whom were female (F), in each of three age groups: at least 9 but less than 10 years old, at least 11 but less than 12 years old, and at least 13 but less than 14 years old. These children were taught to perform chest compressions used in cardiopulmonary resuscitation (CPR). For CPR, ideal compression depth is 40 to 50 millimeters (mm). The children used a practice mannequin with sensors that recorded the average (arithmetic mean) depth achieved by each child. The results are plotted on the graph. Based on the information provided, select from each drop-down menu the option that completes the statement most accurately. 8A In the study, age and average compression depth are positively correlated for 8B Among the three age groups displayed, the median average compression depth is in the ideal range for CPR for the group of children who are at least years old.
OG17 OG18	For each of the following statements, select Yes if the statement is true based on the information provided; otherwise select No.